intheswim.com

Very reliable company, product shipped and received ahead of schedule, well boxed and terrific product and price.

Good product, and cleans well. Have used these for many years

Very happy with this product. Does the job it was advertised to do. Losing less water due to evaporation and using much fewer chemicals.

Regular use stopped algae problem. Highly recommended

Have used several years. Clean water in the spring. What more could you ask for